Ontario, California Weather:
Saturday, January 3, 2026
Rainy Weather
Day 61°
Night 43°
Precipitation 57 %
Wind 4 mph
UV Index (0 - 11+) 1
Weather Forecast History
Last Year's Weather on This Day (January 3, 2025)
Cloudy Weather

Day

64°

Night

43°

Wind

4 mph

UV Index

3

Precipitation

0 %